Centrifugal fan type cooling module

ABSTRACT

A centrifugal fan type cooling module includes a centrifugal fan and a radiator. The centrifugal fan provides a fan rotor with fan blades and an axial shaft and a fan stator set with an axial core, an upper cover and a frame. The radiator provides cooling fins and is mounted to the centrifugal fan with the frame. Heat generated by an electronic component and radiated by the radiator can be removed outward quickly in all directions by way of upward suction force of the centrifugal fan and the L shaped fan blades of the centrifugal fan to avoid air flow carrying heat contacting other electronic members directly for enhancing effect of the cooling module.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to a centrifugal fan type cooing module and particularly to a centrifugal fan attached with a radiator with which the air flow is sucked upward and removed toward all directions so as to dissipate heat radiated by the radiator and avoid the air flow with the heat contacting any other electronic member beside the heat generating electronic component.

2. Brief Description of the Related Art

Due to the electronic component providing faster running speed and micro design of the size thereof, a great deal heat generated by the running electronic component has become a puzzle subject. If the heat is unable to be removed successfully, it may lead to the electronic component running abnormally and, even more, it may seriously result in the computer being shut down to affect the operation capability thereof. In order to remove the heat effectively, a heat dissipation component such as a radiator or a cooling fan frequently is added to the electronic component to help heat removal.

Referring FIGS. 1 to 3, a conventional cooling module is composed of a cooling fan 11 and a radiator 12. The cooling fan 11 is an axial flow type fan and mounted to the radiator 12. The radiator 12 is tightly attached to the electronic component 13. Once the cooling fan 11 is powered on, the air flow generated by the cooling fan is blown downward to the radiator 12 and the electronic component 13 to carry the heat generated by the electronic component 13 outward. Part of the heat, which has been transmitted to the radiator and is supposed to be removed by the cooling fan, is unavoidably accompanying with the blown downward air flow to contact with the electronic component 13 and the moving downward heat is contrary to the principle of the heat being moving toward low temperature from high temperature. As a result, the efficiency of heat dissipation is always low and unable to be promoted effectively.

SUMMARY OF THE INVENTION

The crux of the present invention resides in that a centrifugal fan is utilized to suck the heat upward to comply with the principle of heat moving toward low temperature from high temperature such that the heat on the electronic component and the heat has been transmitted to the radiator can be removed quickly to avoid the electronic component being overheated and to enhance the operation capability of the electronic component effectively.

An object of the present invention is to provide a centrifugal fan type cooling module, which can remove the heat generated from the electronic component quickly.

BRIEF DESCRIPTION OF THE DRAWINGS

The detail structure, the applied principle, the function and the effectiveness of the present invention can be more fully understood with reference to the following description and accompanying drawings, in which:

FIG. 1 is an exploded perspective view of a conventional cooling module;

FIG. 2 is an assembled perspective view of the conventional cooling module shown in FIG. 1;

FIG. 3 is a plan view illustrating air flow in the conventional cooling module;

FIG. 4 is an exploded perspective view of the first embodiment of the centrifugal type cooling module according to the present invention;

FIG. 5 is an assembled perspective view of the first embodiment shown in FIG. 4;

FIG. 6 is a plan view illustrating air flow in the cooling module of the first embodiment;

FIG. 7 is an exploded perspective view of the cooling module according to the present invention in the second embodiment thereof, and

FIG. 8 is an assembled perspective view of the second embodiment shown in FIG. 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 4 and 5, a centrifugal fan type cooling module according to the present invention in the first embodiment thereof includes a centrifugal fan 21 and a radiator 22. The centrifugal fan 21 further includes a fan rotor 211, which provides L shaped fan blades 211 a, and a fan stator set 212, which further provides an axial core 212 a, an upper cover 212 b and a frame 212 c. The frame 212 c has a flange 212 d at the inner side next to the upper edge thereof for being mounted to the radiator 22 and can be provided with any shapes. It is illustrated in the first embodiment that the frame 212 c is provided with a shape of square.

The fan rotor 211 is rotationally attached to the axial core 212 a of the fan stator set 212. The radiator 22 is provided with cooling fins 221 and is mounted to the centrifugal fan 21 by means of the frame 212 c of the fan stator 212. Then, the radiator 22 is tightly attached to the electronic component 23.

Referring to FIG. 4 again, there is an elevation difference on the fan rotor 211 between the lower lateral sides of the fan blades 211 b and the axial shaft 211 c such that a space is formed due to the elevation difference. Once the fan rotor 211 rotates, stagnating air generated under the axial shaft 211 c can pass through the space and L shaped recesses of the fan blades 211 b such that the effect of heat dissipation can be enhanced.

Referring to FIG. 6, it can be seen how the air flow in the radiator of the present invention removes the heat generated by the electronic component 23. The heat is transmitted to the radiator 22 and passes the cooling fins 221 such the heat can be removed by way of radiating. When the centrifugal fan is power on, the upward suction force is created to suck the air flow due to the fan rotor 211 running and the radiated heat removed by the radiator 22 can accelerate the speed of moving out due to the feature of heat moving toward lower temperature area. Further, the heat moves out in all directions via the centrifugal fan and it is not possible for the heat being blown toward other electronic members near the electronic component 23 so as to enhance the effect of heat dissipation for the cooling module.

Referring to FIGS. 7 and 8, the second embodiment of the present invention is illustrated. The entire structure of the second embodiment is almost the same as the first embodiment of the present invention. The only difference is that the radiator 32 has a circular shape instead of square shape to comply with the configuration of the fan rotor 211 for enhancing the efficiency of heat removal.

While the invention has been described with referencing to the preferred embodiments thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims. 

1. A centrifugal fan type cooling module, comprising a centrifugal fan, providing a fan rotor with a plurality of fan blades and an axial shaft and a fan stator set with an axial core, an upper cover and a flame; and a radiator, providing a plurality of cooling fins and being mounted to the centrifugal fan by way of the frame; whereby, heat generated by an electronic component and radiated by the radiator can be removed outward quickly in all directions by way of upward suction force of the centrifugal fan and the fan blades of the centrifugal fan to avoid air flow, which carries the heat, contacting electronic members beside the electronic component directly so as to enhance cooling effect of the cooling module.
 2. The centrifugal fan type cooling module as defined in claim 1, wherein the fan blades of the fan rotor are provided with a shape of L, respectively.
 3. The centrifugal fan type cooling module as defined in claim 1, wherein the frame has a flange at the inner side next to the upper edge thereof. 